Repair-tool for pneumatic tires.



E. E. MILLER.

REPAIR TOOL FOR PNEUMATIC TIRES.

APPLICATION FILED B30215, 1913.

1,095,283, Patented May 5, 1914.

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ERNEST E. MILLER, 0F MILWAUKEE, WISCONSIN.

REPAIR-TOOL FOR PNEUMATIC TIRES.

Specification of Letters Patent.

Patented May 5, 1914.

Application filed December 15, 1913. Serial No. 806,740.

To all whom it may concern Be it known that I, ERNEST E. MILLER, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and tate of Wisconsin, have invented certain new and useful Improvements in Repair- Tcols for Pneumatic Tires; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention refers to a standard type of repairing tool for pneumatic tires.

The object of my invention is to provide a simple, effective and positive means for locking and releasing the band-retaining trigger usually employed in tools of the above character. The type of tool referred to in general comprises a crotched ended needle having. a handle, upon the shank of which is pivotally secured a tripper. Elastic bands areseated within the crotch of the needle and confined therein under tension by means of a trigger, which trigger is locked in some means to the handle. The stretched rubber bands carried by the tool are saturated with cement solution and inserted into a puncture through which the crotched end of the needle is forced together with said bands. The trigger is then tripped to release the tension upon the bands and the needle withdrawn to thus cause the bands to fill the puncture and effectually seal the same. In practice, so far as I am aware, the triggers usually employed are capable of both a swinging or hinging motion and also have play upon their pivots to permit the trigger to be raised over a locking tongue or pin, whereby the trigger is confined for stretching the elastic bands. The trigger so confined is tilted upon its pivot to effect release of the bands. In this form of trigger it frequently happens that the loose shackle connection for locking and releasing the same will cause said trigger to free itself under strain of the bands through the clumsy manipulation. of those unskilled in the art of repairing and hence the saturated gummy bands become contracted and are, to a certain extent, rendered unfit for reexpansion preparatory to a second attempt. For the purpose of overcoming the above objectionable features I provide a trigger member so arranged and constructed as to avoid such premature release, whereby the bands will not become free before the necessary inserting operation.

With the above objects in view the invent1on consists in certain peculiarities of con struction and combination of parts as here inafter set forth with reference to the accompanying drawings and subsequently claimed.

In the drawings Figure 1 represents a side elevation partially in section of a tool embodying the features of my invention, and Fig. 2, a detailed cross-section of the same, the section being indicated by line 2-2 of Fig. 1.

Referring by characters to the drawings, 1 represents a needle which is embedded in the shank portion 2 of a handle 3. The end of the needle is provided with spring tangs forming a band-receiving crotch 1, it being understood that a series of such bands, pref- 'erably composed of rubber, are inserted within the crotch and thereafter stretched to a predetermined degree and confined by a trigger. The trigger is hingedly secured to the shank of the handle by a pivot-pin I, the said hinge connection being such as to prevent lateral play of the trigger upon its pivot. The trigger is provided with an oifset band-receiving jaw 5 having a recess 5, into which are nested the ends of the stretched bands. The trigger is also provided with a neck 6, which neck is disposed at a right-angle to the jaw and its end is of approximately the same width as the shank of the handle. Hence when the trigger is in the position shown, wherein the bands are expanded, the end of the neck 6 is in register with the handle shank, whereby the operator may look said neck to the shank through manipulation of a metallic loop 7, which loop is slidably mounted upon the said handle shank. Thus when the loop is forced toward the pivot of the trigger, it will posi- "tively look said trigger in the position shown and this forward movement of the loop is limited by a shoulder 6' which 'is formed in one edge of the neck. It is apparent that when the trigger is to be released that the operator can readily slide the link backward to a position upon the shank of the handle, whereby the neck of said trigger is freed and thus the retractive force of the bands will cause the trigger to revolve upon its pivot, whereby said bands may be stripped from the jaw. In this simple arrangement, attention is called to the fact that, in assemblage, the loo 7 is first slipped over the shank of the handle and thereafter the trigger is hingedly secured to said handle, whereby the loop is confined.

By this arrangement it is obvious that when the trigger is locked, by forcing the loop over its neck portion, it cannot be inadvertently released, but will require a positive backward movement of said loop, whereby the same will be stripped from the neck portion to free the trigger. Thus When the bands are locked in their distended position preparatory to being inserted into a pneuinatic tube, owing to the rigidity of the trigger in all directions, there is no liability of the same being freed inadvertently.

I claim:

In a repair tool of the described type; the combination of a handle having a needle extending therefrom provided With a loand-receiving crotch at its end, a trigger in hinge connection With the handle, the trigger comprising a band-receiving jaW, a shouldered lock and release neck that extends at approximately a right-angle to the jaw, and a shiftable loop mounted upon the handle adapted to slide over the trigger neck to abut the shoulder, whereby the same is locked, the loop being moved free of the neck to effect releasing engagement of said trigger.

In testimony that I claim the foregoing l have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two Witnesses.

ERNEST E. MILLER.

Witnesses Geo. W. YoUNe, M. E. DOWNEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). G. 

